| (19) |
 |
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(11) |
EP 1 154 287 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
13.02.2002 Bulletin 2002/07 |
| (43) |
Date of publication A2: |
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14.11.2001 Bulletin 2001/46 |
| (22) |
Date of filing: 17.11.1995 |
|
| (51) |
International Patent Classification (IPC)7: G02B 1/10 |
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
17.11.1994 JP 28316994
19.09.1995 JP 23962395
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
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95308260.9 / 0713106 |
| (71) |
Applicant: Menicon Co., Ltd. |
|
Nagoya-shi Aichi-ken (JP) |
|
| (72) |
Inventors: |
|
- Nakada, Kazuhiko, c/oMenicon Co., Ltd. C.R.Lab.
Aichi-ken (JP)
- Saito, Naomi, c/oMenicon Co., Ltd. C.R.Lab.
Aichi-ken (JP)
- Nishibayashi, Misako, c/oMenicon Co., Ltd. C.R.Lab
Aichi-ken (JP)
- Nakamura, Atsuyuki, c/oMenicon Co., Ltd.
Aichi-ken (JP)
- Hishida, Yasuhito, c/oMenicon Co., Ltd.
Aichi-ken (JP)
|
| (74) |
Representative: Paget, Hugh Charles Edward et al |
|
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB) |
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| |
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| (54) |
Oxygen permeable contact lens having a hydrophilic surface and method for producing
the same |
(57) A hydrophilic oxygen permeable contact lens having a front surface which is not to
be in contact with the cornea of a human eye when the contact lens is worn on the
human eye, wherein at least the front surface of the contact lens is coated with a
hydrophilicity rendering material which renders the front surface hydrophilic and
which is selected from the group consisting of: (A) hydrophilic silicone oil which
is represented by the formula given in the specification and whose viscosity at a
temperature of 20°C is not higher than 5,000 centipoise; (B) polysaccharide or its
derivative; and (C) denatured collagen whose average molecular weight is in a range
of 400 ∼ 100,000. Also disclosed is a method of producing the hydrophilic oxygen permeable
contact lens.